there is pressure on biden to deliver after president obama's poor performance last week. also, this is a campaign where president obama is running as much against paul ryan's ideas as he is against mitt romney. that elevates ryan as well. >> it seems clear in choosing chris van holland they will go against the first ryan budget, the first medicare plan and also the ryan book. they will go after the budget cuts and troo to tag mitt romney with the severity, using the term relatively, of the ryan budget cuts. >> right. rom uh any down played the ryan road map. keep in mind the first ryan budget plan included privatizing social security, at least to a certain extent. that's something ryan then dropped in his subsequent budgets. it was there and he was one of the advocates of the plan to put it in the market. secondly the medicare issue. those entitlements, we'll ha from biden about thursday. a lot of democrats think he dropped the ball not pushing the issues against mitt romney. joe biden will read ryan's book and go after those entitlements. >> up next, as mitt romney focus